package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.dto.SetmealDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.SetmealDishService;
import com.itheima.reggie.service.SetmealService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;


//套餐管理的相关业务，我们都统一在 SetmealController 中进行统一处理操作

/**
 * 套餐管理
 */
@RestController
@Slf4j
@RequestMapping("/setmeal")
@Api(tags = "套餐类相关接口")
public class SetmealController {
    @Autowired
    private SetmealService setmealService;
    @Autowired
    private SetmealDishService setmealDishService;
    @Autowired
    private CategoryService categoryService;
    @PostMapping
    @CacheEvict(value = "setmealCache",allEntries = true) //清除setmealCache名称下,所有的缓存数据
    @ApiOperation(value = "新增套餐接口")

    public R<String> save(@RequestBody SetmealDto setmealDto){
        setmealService.saveWithDish(setmealDto);

        return R.success("新增套餐成功");
    }

    /**
     * 分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    @ApiOperation(value = "套餐分页查询接口")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "name",value = "套餐名称",required = false),
            @ApiImplicitParam(name = "page",value = "页码",required = false),
            @ApiImplicitParam(name = "pageSize",value = "条数",required = true)
    })
    public R<Page> page(Integer page,Integer pageSize,String name){
        Page<Setmeal> pageInfo = new Page<>(page,pageSize);
        Page<SetmealDto> dtoPage = new Page<>();

        LambdaQueryWrapper<Setmeal> lam = new LambdaQueryWrapper<>();
        lam.like(name!=null,Setmeal::getName,name);
        lam.orderByDesc(Setmeal::getUpdateTime);
        setmealService.page(pageInfo,lam);

        // 对象拷贝
        BeanUtils.copyProperties(pageInfo,dtoPage,"records");
        List<Setmeal> records = pageInfo.getRecords();

        List<SetmealDto> list = records.stream().map((item)->{
            SetmealDto setmealDto = new SetmealDto();
            BeanUtils.copyProperties(item,setmealDto);
            Long categoryId = item.getCategoryId();
            Category category = categoryService.getById(categoryId);
            if (category!=null){
                setmealDto.setCategoryName(category.getName());
            }
            return setmealDto;
        }).collect(Collectors.toList());
        dtoPage.setRecords(list);

        return R.success(dtoPage);

    }


    @DeleteMapping
    @CacheEvict(value = "setmealCache",allEntries = true) //清除setmealCache名称下,所有的缓存数据
    @ApiOperation(value = "套餐删除")
    public R<String> delete(@RequestParam List<Long> ids){
        log.info("是删除的ids:{}",ids);
        setmealService.removeWithDish(ids);
        return R.success("删除成功");
    }


    @GetMapping("/list")
    @Cacheable(value = "setmealCache",key = "#setmeal.categoryId + '_' + #setmeal.status")
    @ApiOperation(value = "套餐条件查询接口")
    public R<List<Setmeal>> list(Setmeal setmeal){
        LambdaQueryWrapper<Setmeal> lam= new LambdaQueryWrapper<>();
        lam.eq(setmeal.getCategoryId()!=null,Setmeal::getCategoryId,setmeal.getCategoryId());
        lam.eq(setmeal.getStatus()!=null,Setmeal::getStatus,setmeal.getStatus());
        lam.orderByDesc(Setmeal::getUpdateTime);

        List<Setmeal> list = setmealService.list(lam);
        return R.success(list);
    }

}
